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Added the battery voltage code.

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This commit is contained in:
klaute 2018-07-11 11:12:53 +02:00
parent 0f89167450
commit c16d431c89
4 changed files with 16 additions and 6 deletions
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1
firmware/config.h
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@ -6,6 +6,7 @@
#define SENSOR_LIGHT 2 #define SENSOR_LIGHT 2
#define SENSOR_WINDSPEED 3 #define SENSOR_WINDSPEED 3
#define SENSOR_PRESSURE 4 #define SENSOR_PRESSURE 4
#define SENSOR_BAT_VOLTAGE 5
#define UPDATE_SENSOR_INTERVAL_S 10 #define UPDATE_SENSOR_INTERVAL_S 10
#define UPDATE_WEBSERVER_INTVERVAL_S 1 #define UPDATE_WEBSERVER_INTVERVAL_S 1

5
firmware/firmware.ino
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@ -33,7 +33,7 @@
//*************************************************************************// //*************************************************************************//
float currentSensorData[5] = {0.0, 0.0, 0.0, 0.0, 0.0}; float currentSensorData[6] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
uint16_t update_sensor_cnt = 0; uint16_t update_sensor_cnt = 0;
uint16_t update_webserver_cnt = 0; uint16_t update_webserver_cnt = 0;
@ -56,6 +56,7 @@ void setup() {
// Pin settings // Pin settings
pinMode(STATUS_LED_PIN, OUTPUT); pinMode(STATUS_LED_PIN, OUTPUT);
pinMode(ANEMOMETER_PIN, INPUT_PULLUP); pinMode(ANEMOMETER_PIN, INPUT_PULLUP);
pinMode(A0, INPUT);
// Establish WiFi connection // Establish WiFi connection
String wifiName = "oko-weather-" + String(ESP.getChipId()); String wifiName = "oko-weather-" + String(ESP.getChipId());
@ -113,6 +114,7 @@ void loop() {
currentSensorData[SENSOR_LIGHT] = fetchLight(); currentSensorData[SENSOR_LIGHT] = fetchLight();
currentSensorData[SENSOR_WINDSPEED] = fetchWindspeed(); currentSensorData[SENSOR_WINDSPEED] = fetchWindspeed();
currentSensorData[SENSOR_PRESSURE] = fetchPressure(); currentSensorData[SENSOR_PRESSURE] = fetchPressure();
currentSensorData[SENSOR_BAT_VOLTAGE] = getBatteryVoltage();
#ifdef DEBUG #ifdef DEBUG
Serial.println(""); Serial.println("");
@ -122,6 +124,7 @@ void loop() {
Serial.println("Light: " + String(currentSensorData[SENSOR_LIGHT]) + " Lumen"); Serial.println("Light: " + String(currentSensorData[SENSOR_LIGHT]) + " Lumen");
Serial.println("Windspeed: " + String(currentSensorData[SENSOR_WINDSPEED]) + " km/h"); Serial.println("Windspeed: " + String(currentSensorData[SENSOR_WINDSPEED]) + " km/h");
Serial.println("Pressure: " + String(currentSensorData[SENSOR_PRESSURE]) + " hPa"); Serial.println("Pressure: " + String(currentSensorData[SENSOR_PRESSURE]) + " hPa");
Serial.println("Bat Voltage: " + String(currentSensorData[SENSOR_BAT_VOLTAGE]) + " V");
#endif #endif
pushToInfluxDB(DEVICE_NAME, currentSensorData); pushToInfluxDB(DEVICE_NAME, currentSensorData);

6
firmware/influxdb.ino
View file

@ -5,10 +5,8 @@ void pushToInfluxDB(String device, float sensorValues[]) {
influxdb.write("weather,device=" + device + " humidity=" + String(sensorValues[SENSOR_HUMIDITY])); influxdb.write("weather,device=" + device + " humidity=" + String(sensorValues[SENSOR_HUMIDITY]));
influxdb.write("weather,device=" + device + " light=" + String(sensorValues[SENSOR_LIGHT])); influxdb.write("weather,device=" + device + " light=" + String(sensorValues[SENSOR_LIGHT]));
influxdb.write("weather,device=" + device + " windspeed=" + String(sensorValues[SENSOR_WINDSPEED])); influxdb.write("weather,device=" + device + " windspeed=" + String(sensorValues[SENSOR_WINDSPEED]));
influxdb.write("weather,device=" + device + " pressure=" + String(sensorValues[SENSOR_PRESSURE]));
int tmp = influxdb.write("weather,device=" + device + " pressure=" + String(sensorValues[SENSOR_PRESSURE])); influxdb.write("weather,device=" + device + " batvoltage=" + String(sensorValues[SENSOR_BAT_VOLTAGE]));
Serial.println("Opendb status: " + String(tmp));
} }

8
firmware/sensors.ino
View file

@ -46,3 +46,11 @@ float fetchWindspeed() {
return (float)anemometerRotations / 5.0 * 2.4; return (float)anemometerRotations / 5.0 * 2.4;
} }
// Copied from https://arduinodiy.wordpress.com/2016/12/25/monitoring-lipo-battery-voltage-with-wemos-d1-minibattery-shield-and-thingspeak/
float getBatteryVoltage() {
uint16_t raw = analogRead(A0);
float volt = raw / 1023.0;
volt = volt * 4.2;
return volt;
}